Used 32,000 BPD Hydrodesulfurization (HDS) Units built in 1990. This hydrodesulfurization unit is used to desulfurize / desulphurize Light Gas Oil (LGO) and Kerosene to give a low sulfur product used for blending to give Ultra Low Sulfur Diesel (ULSD). This catalytic process is designed for 32,000 BPD of Light Gas Oil (LGO). The catalytic process of hydrodesulfurization, also known as hydrotreating, is the chemical process widely used to remove sulfur compounds from refined petroleum products such as gasoline or petrol, jet fuel, diesel fuel, and fuel oils. One reason for removing sulfur is to reduce sulfur dioxide SO2 emissions that result from the fuel combustion of petroleum products. Another purpose for removing sulfur from the intermediate product naptha streams within a petroleum refinery is that sulfur, even in extremely low concentrations, can severely damage the metal catalysts platinum and rhenium in the catalytic reforming units that are used to upgrade the octane rating in naptha streams. Hydrogenation of sulfur results in the toxic compound of Hydrogen Sulfide. In refineries, toxic hydrogen sulfide is converted into biproduct elemental sulfur.